GB785893A - Improved process and apparatus for the manufacture of artificial threads from spinning solutions - Google Patents
Improved process and apparatus for the manufacture of artificial threads from spinning solutionsInfo
- Publication number
- GB785893A GB785893A GB14679/55A GB1467955A GB785893A GB 785893 A GB785893 A GB 785893A GB 14679/55 A GB14679/55 A GB 14679/55A GB 1467955 A GB1467955 A GB 1467955A GB 785893 A GB785893 A GB 785893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spinneret
- trough
- flat
- wall
- coagulating liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
Abstract
<PICT:0785893/IV (a)/1> Artificial filaments are wet-spun by extruding a spinning solution such as viscose through a spinneret mounted in and encircled by a spinneret holder which constitutes a guiding body for a stream of coagulating liquid, part of the internal surface of the guiding body being in the same flat plane as the flat face of the spinneret and serving as a guiding or boundary surface for the stream of coagulating liquid. A second guiding member or body having an internal flat surface parallel with that of the first guiding body and spaced only a short distance therefrom is provided with a trumpet-shaped opening coaxial with the spinneret and leading into a tubular conduit for drawing off the bundle of filaments and discharging the coagulating liquid. The space between the two guiding surfaces thus forms a duct for the stream of coagulating liquid in the shape of a flat annulus, so that the stream can flow first with increasing linear velocity from all rides radially towards the axis of the spinneret in the plane of the spinneret face and then enter the tubular conduit with the bundle of filaments, thus changing the direction of its path of flow to one normal to the previous direction. As shown in Fig. 1, spinning solution is supplied to the spinneret 5 through the feed pipe 1 and the tubular conduit 4 in the spinning head 3, and is extruded to form a bundle of filaments which leave the spinneret face 6 and are drawn through the bell-mouthed tubular conduit 7 facing and coaxial with the spinneret. The coagulating feed liquid flows through the supply pipe 8, annular passage 9, wire gauge screen 10, and annular passage 11, and then radially inwards towards the axis of the spinneret 5 between the flat external surface 12 of the spinneret holder 14 and the flat internal surface 13 of the cup-shaped member 15. The coagulating liquid finally enters the bell mouth of the conduit 7 and flows through the conduit together with the filaments. The joints between the various detachably connected portions of the apparatus are rendered liquid-tight by means of rubber sealing rings 16-20. The distance between the surfaces 12 and 13 may be adjusted by means of interchangeable annular distance-pieces 21. In an alternative form of apparatus the spinneret and spinneret holder are submerged in a bath of coagulating liquid in an uncovered trough, the spinneret axis being perpendicular to a wall of the trough and coaxial with an outlet pipe projecting from the exterior of this wall and communicating with the interior of the trough. The mouth of the pipe in the wall of the trough is bell-shaped and the flat face of the spinneret and spinneret holder is spaced a short distance from and parallel with the wall of the trough carrying the pipe, so that the coagulating liquid flows radially inwards towards the axis of the spinneret between the wall of the trough and the flat outer surface of the spinneret holder before entering the outlet pipe in the wall of the trough. Specification 394,049, [Group IV], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL785893X | 1954-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB785893A true GB785893A (en) | 1957-11-06 |
Family
ID=19832269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14679/55A Expired GB785893A (en) | 1954-06-17 | 1955-05-20 | Improved process and apparatus for the manufacture of artificial threads from spinning solutions |
Country Status (5)
Country | Link |
---|---|
US (1) | US2834046A (en) |
BE (1) | BE538171A (en) |
DE (1) | DE1105104B (en) |
GB (1) | GB785893A (en) |
NL (1) | NL89850C (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2988777A (en) * | 1955-05-12 | 1961-06-20 | Du Pont | Spinning apparatus |
US2958097A (en) * | 1957-09-12 | 1960-11-01 | American Viscose Corp | Spinneret assembly |
NL100039C (en) * | 1958-06-20 | |||
NL97108C (en) * | 1958-11-07 | |||
US2968203A (en) * | 1959-06-12 | 1961-01-17 | Dow Chemical Co | Spinnerette wrench |
US3061874A (en) * | 1960-11-23 | 1962-11-06 | Du Pont | Melt spinning apparatus |
CH486570A (en) * | 1966-09-21 | 1970-02-28 | Inventa Ag | Device for the production of composite threads consisting of at least two different polymers |
US4744932A (en) * | 1985-05-31 | 1988-05-17 | Celanese Corporation | Process for forming a skinless hollow fiber of a cellulose ester |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE516571C (en) * | 1930-01-24 | 1931-01-23 | Alfred Lehner Dr | Spinneret and spinneret holder for the production of rayon |
GB394049A (en) * | 1932-01-26 | 1933-06-22 | Leonard Joseph Shone | Improvements in and relating to the production of artificial fibres, horse-hair and the like |
DE705881C (en) * | 1937-08-16 | 1941-05-13 | Karl Berndt Dr Ing | Device for spinning artificial threads |
DE733178C (en) * | 1940-05-21 | 1943-03-20 | Karl Berndt Dr Ing | Device for spinning artificial threads |
NL74039C (en) * | 1947-08-25 | |||
US2642333A (en) * | 1949-07-26 | 1953-06-16 | Omni Products Corp | Method of spinning polyvinyl alcohol fibers |
BE517237A (en) * | 1952-01-31 | |||
US2698963A (en) * | 1952-08-15 | 1955-01-11 | American Viscose Corp | Wet-spinning apparatus |
-
0
- NL NL89850D patent/NL89850C/xx active
- BE BE538171D patent/BE538171A/xx unknown
-
1955
- 1955-05-20 DE DEN10665A patent/DE1105104B/en active Pending
- 1955-05-20 GB GB14679/55A patent/GB785893A/en not_active Expired
- 1955-06-13 US US515146A patent/US2834046A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE538171A (en) | |
NL89850C (en) | |
US2834046A (en) | 1958-05-13 |
DE1105104B (en) | 1961-04-20 |
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